What would you recommend I use to plug up some of the screw and bolt holes on the firewall to keep everything water tight. For example, I'm replacing the stock points ignition with the HEI. After removing the stock coil, there are holes in the firewall that I need to plug up. I have various other screw holes I need to plug up as well. I would someday like to weld on new metal panels or replace the entire firewall. But I don't really have the time to do it right now. Any suggestions, opinions, etc? Thanks.
